drivers/staging/typec/tcpci_rt1711h.c:218: undefined reference to `i2c_smbus_read_word_data'

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ba4dbdedd3edc2798659bcd8b1a184ea8bdd04dc
commit: ce08eaeb6388e78daf35a5ce2e72a19026def8a7 staging: typec: rt1711h typec chip driver
date:   8 weeks ago
config: x86_64-randconfig-s4-06200335 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        git checkout ce08eaeb6388e78daf35a5ce2e72a19026def8a7
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/staging/typec/tcpci.o: In function `tcpci_probe':
>> drivers/staging/typec/tcpci.c:536: undefined reference to `__devm_regmap_init_i2c'
   drivers/staging/typec/tcpci.o: In function `tcpci_i2c_driver_init':
>> drivers/staging/typec/tcpci.c:593: undefined reference to `i2c_register_driver'
   drivers/staging/typec/tcpci.o: In function `tcpci_i2c_driver_exit':
>> drivers/staging/typec/tcpci.c:593: undefined reference to `i2c_del_driver'
   drivers/staging/typec/tcpci_rt1711h.o: In function `rt1711h_check_revision':
>> drivers/staging/typec/tcpci_rt1711h.c:218: undefined reference to `i2c_smbus_read_word_data'
   drivers/staging/typec/tcpci_rt1711h.c:225: undefined reference to `i2c_smbus_read_word_data'
   drivers/staging/typec/tcpci_rt1711h.o: In function `rt1711h_probe':
>> drivers/staging/typec/tcpci_rt1711h.c:251: undefined reference to `__devm_regmap_init_i2c'
   drivers/staging/typec/tcpci_rt1711h.o: In function `rt1711h_i2c_driver_init':
>> drivers/staging/typec/tcpci_rt1711h.c:308: undefined reference to `i2c_register_driver'
   drivers/staging/typec/tcpci_rt1711h.o: In function `rt1711h_i2c_driver_exit':
>> drivers/staging/typec/tcpci_rt1711h.c:308: undefined reference to `i2c_del_driver'

vim +218 drivers/staging/typec/tcpci_rt1711h.c

   213	
   214	static int rt1711h_check_revision(struct i2c_client *i2c)
   215	{
   216		int ret;
   217	
 > 218		ret = i2c_smbus_read_word_data(i2c, TCPC_VENDOR_ID);
   219		if (ret < 0)
   220			return ret;
   221		if (ret != RT1711H_VID) {
   222			dev_err(&i2c->dev, "vid is not correct, 0x%04x\n", ret);
   223			return -ENODEV;
   224		}
   225		ret = i2c_smbus_read_word_data(i2c, TCPC_PRODUCT_ID);
   226		if (ret < 0)
   227			return ret;
   228		if (ret != RT1711H_PID) {
   229			dev_err(&i2c->dev, "pid is not correct, 0x%04x\n", ret);
   230			return -ENODEV;
   231		}
   232		return 0;
   233	}
   234	
   235	static int rt1711h_probe(struct i2c_client *client,
   236				 const struct i2c_device_id *i2c_id)
   237	{
   238		int ret;
   239		struct rt1711h_chip *chip;
   240	
   241		ret = rt1711h_check_revision(client);
   242		if (ret < 0) {
   243			dev_err(&client->dev, "check vid/pid fail\n");
   244			return ret;
   245		}
   246	
   247		chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
   248		if (!chip)
   249			return -ENOMEM;
   250	
 > 251		chip->data.regmap = devm_regmap_init_i2c(client,
   252							 &rt1711h_regmap_config);
   253		if (IS_ERR(chip->data.regmap))
   254			return PTR_ERR(chip->data.regmap);
   255	
   256		chip->dev = &client->dev;
   257		i2c_set_clientdata(client, chip);
   258	
   259		ret = rt1711h_sw_reset(chip);
   260		if (ret < 0)
   261			return ret;
   262	
   263		ret = rt1711h_init_alert(chip, client);
   264		if (ret < 0)
   265			return ret;
   266	
   267		chip->data.init = rt1711h_init;
   268		chip->data.set_vconn = rt1711h_set_vconn;
   269		chip->data.start_drp_toggling = rt1711h_start_drp_toggling;
   270		chip->tcpci = tcpci_register_port(chip->dev, &chip->data);
   271		if (IS_ERR_OR_NULL(chip->tcpci))
   272			return PTR_ERR(chip->tcpci);
   273	
   274		return 0;
   275	}
   276	
   277	static int rt1711h_remove(struct i2c_client *client)
   278	{
   279		struct rt1711h_chip *chip = i2c_get_clientdata(client);
   280	
   281		tcpci_unregister_port(chip->tcpci);
   282		return 0;
   283	}
   284	
   285	static const struct i2c_device_id rt1711h_id[] = {
   286		{ "rt1711h", 0 },
   287		{ }
   288	};
   289	MODULE_DEVICE_TABLE(i2c, rt1711h_id);
   290	
   291	#ifdef CONFIG_OF
   292	static const struct of_device_id rt1711h_of_match[] = {
   293		{ .compatible = "richtek,rt1711h", },
   294		{},
   295	};
   296	MODULE_DEVICE_TABLE(of, rt1711h_of_match);
   297	#endif
   298	
   299	static struct i2c_driver rt1711h_i2c_driver = {
   300		.driver = {
   301			.name = "rt1711h",
   302			.of_match_table = of_match_ptr(rt1711h_of_match),
   303		},
   304		.probe = rt1711h_probe,
   305		.remove = rt1711h_remove,
   306		.id_table = rt1711h_id,
   307	};
 > 308	module_i2c_driver(rt1711h_i2c_driver);
   309	

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